A studio for Web3 founders
The nightyou decided to build it,you didn’t know who to call.
Now you do. Built for founders.
Most agencies
They quoted you three months.
And eighty thousand.
And said “blockchain” the way
tourists say bonjour.
That isn’t the price of building a product.
That’s the price of someone learning on you.
The other option
Or you AI it.
A SaaS bug leaks your admin keys.
A contract bug drains your treasury.
Either way, the funds are gone before lunch.
92%
AI-generated codebases with a critical vulnerability.
45%
AI-written code shipping with security flaws.
40%
What AI audit tools catch versus a human audit.
62%
Web3 startups already working with a specialized agency.
Sherlock Forensics, 2026. Messari, 2026.
Investors in 2026 fund teams
that survive pressure.
A Lovable export doesn’t.
The turn
We came from somewhere else.
- 01Mathematical physics.
- 02The quant desks.
- 03DeFi, before the bridges broke.
- 04Wallets that hold real money.
- 05Banks. The actual ones.
- 06iGaming, where the math has to be perfect.
- 07Hospitals, where the bug is a person.
- 08Stages with millions watching.
- 09Encrypted file exchange.
So we built 137.
To stop watching the wrong people quote you
for what we already know how to build.
What we ship
Web3 MVPs.
Fixed scope. Fixed price.
We eat the overruns.
4 weeks.
Idea to working prototype on testnet.
Wallets, auth, one contract, one chain.
€19,000
Validate before you raise.
6 weeks.
Audit-ready. Mainnet on the day you say go.
Frontend, contracts, tests, deploy scripts.
€39,000
Most teams pick this one.
8 weeks.
Tokens, frontends, integrations.
Built for the round you’re about to raise.
€79,000
Equity option available.
The math
The industry quotes €50k to €250k.
Three to five months.
Industry
€80,000
16 weeks. 3 to 5 month average.
Us
€39,000
6 weeks. Fixed price. We eat the overruns.
You keep
10 weeks. €41,000.
Spend it on distribution, not on us learning to code.
We’re cheaper because we already know how. The discount is yours, not ours to keep.
Founders, after
People who shipped,
and what they said next.
“Six weeks from kickoff to a working liquid-staking demo on testnet. We used it to close our seed. Mainnet hardening came after, with the same team.”
Mira Chen
Co-founder, Tassel Protocol
“I had hired three Web3 agencies before this. Two ghosted. One delivered something we rewrote. 137 was the only team that asked about MEV and frontrunning protection on the first call.”
Daniyar Sultanov
Founder, Argive Markets
“Our payments rail had to satisfy a hospital compliance review and a Solana program audit. They wrote it audit-clean from day one. The auditor came back with three minor findings, total.”
Nadia Bekova
CTO, Plumis Health
“We were stuck integrating our certified game server to an on-chain settlement layer. They shipped the integration plus operator dashboards in five weeks. Certification was its own process, but we hit the launch window.”
Tomás Iriarte
Head of Product, Bonfire Gaming
“From a napkin sketch to a working prototype we showed at a partner fund in five weeks. We did not get the term sheet. I still owe these people dinner.”
Eleni Markou
Founder, Vellum Labs
“Our previous quote was four months and ninety thousand euros. They did the same scope in six weeks for thirty-nine. We re-read the contract three times looking for the catch.”
Jonas Halvorsen
CEO, Nordlys Exchange
And so
You’ve thought about this
long enough.
Tell us what you want to build.
